#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# 2010-2016 Nico Schottelius (nico-cdist at schottelius.org)
# 2016 Darko Poljak (darko.poljak at gmail.com)
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#
#

import logging


def commandline():
    """Parse command line"""

    import cdist.argparse
    import cdist.banner
    import cdist.config
    import cdist.install
    import cdist.shell
    import cdist.inventory

    parser = cdist.argparse.get_parsers()
    args = parser['main'].parse_args(sys.argv[1:])

    # Loglevels are handled globally in here
    cdist.argparse.handle_loglevel(args)

    log.verbose("version %s" % cdist.VERSION)
    log.trace(args)

    # Work around python 3.3 bug:
    # http://bugs.python.org/issue16308
    # http://bugs.python.org/issue9253

    # FIXME: catching AttributeError also hides
    # real problems.. try a different way

    # FIXME: we always print main help, not
    # the help of the actual parser being used!
    try:
        getattr(args, "func")
    except AttributeError:
        parser['main'].print_help()
        sys.exit(0)

    cdist.argparse.check_beta(vars(args))
    args.func(args)


if __name__ == "__main__":
    import sys

    cdistpythonversion = '3.2'
    if sys.version < cdistpythonversion:
        print('Python >= {} is required on the source host.'.format(
                cdistpythonversion), file=sys.stderr)
        sys.exit(1)

    exit_code = 0

    try:
        import os
        import re
        import cdist

        log = logging.getLogger("cdist")

        if re.match("__", os.path.basename(sys.argv[0])):
            import cdist.emulator
            emulator = cdist.emulator.Emulator(sys.argv)
            emulator.run()
        else:
            commandline()

    except KeyboardInterrupt:
        exit_code = 2

    except cdist.Error as e:
        log.error(e)
        exit_code = 1

    sys.exit(exit_code)